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Fix exim build on NetBSD (support for bdb 1.x dropped)

Bump PKGREVISION

exim: updated to 4.93

Exim version 4.93
-----------------

JH/01 OpenSSL: With debug enabled output keying information sufficient, server
      side, to decode a TLS 1.3 packet capture.

JH/02 OpenSSL: Suppress the sending of (stateful) TLS1.3 session tickets.
      Previously the default library behaviour applied, sending two, each in
      its own TCP segment.

JH/03 Debug output for ACL now gives the config file name and line number for
      each verb.

JH/04 The default received_header_text now uses the RFC 8314 tls cipher clause.

JH/05 DKIM: ensure that dkim_domain elements are lowercased before use.

JH/06 Fix buggy handling of autoreply bounce_return_size_limit, and a possible
      buffer overrun for (non-chunking) other transports.

JH/07 GnuTLS: Our use of late (post-handshake) certificate verification, under
      TLS1.3, means that a server rejecting a client certificate is not visible
      to the client until the first read of encrypted data (typically the
      response to EHLO).  Add detection for that case and treat it as a failed
      TLS connection attempt, so that the normal retry-in-clear can work (if
      suitably configured).

JB/01 Bug 2375: fix expansions of 822 addresses having comments in local-part
      and/or domain.  Found and fixed by Jason Betts.

JH/08 Add hardening against SRV & TLSA lookups the hit CNAMEs (a nonvalid
      configuration).  If a CNAME target was not a wellformed name pattern, a
      crash could result.

JH/09 Logging: Fix initial listening-on line for multiple ports for an IP when
      the OS reports them interleaved with other addresses.

JH/10 OpenSSL: Fix aggregation of messages.  Previously, when PIPELINING was
      used both for input and for a verify callout, both encrypted, SMTP
      responses being sent by the server could be lost.  This resulted in
      dropped connections and sometimes bounces generated by a peer sending
      to this system.

JH/11 Harden plaintext authenticator against a badly misconfigured client-send
      string.  Previously it was possible to cause undefined behaviour in a
      library routine (usually a crash).  Found by "zerons".

JH/12 Bug 2384: fix "-bP smtp_receive_timeout".  Previously it returned no
      output.

JH/13 Bug 2386: Fix builds with Dane under LibreSSL 2.9.0 onward.  Some old
      API was removed, so update to use the newer ones.

JH/14 Bug 1891: Close the log file if receiving a non-smtp message, without
      any timeout set, is taking a long time.  Previously we would hang on to a
      rotated logfile "forever" if the input was arriving with long gaps
      (a previous attempt to fix addressed lack, for a long time, of initial
      input).

HS/01 Bug 2390: Use message_id for tempfile creation to avoid races in a
      shared (NFS) environment. The length of the tempfile name is now
      4 + 16 ("hdr.$message_exim_id") which might break on file
      systems which restrict the file name length to lower values.
      (It was "hdr.$pid".)

HS/02 Bug 2390: Use message_id for tempfile creation to avoid races in a
      shared (NFS) environment.

HS/03 Bug 2392: exigrep does case sensitive *option* processing (as it
      did for all versions <4.90). Notably -M, -m, --invert, -I may be
      affected.

JH/15 Use unsigned when creating bitmasks in macros, to avoid build errors
      on some platforms for bit 31.

JH/16 GnuTLS: rework ciphersuite strings under recent library versions.  Thanks
      to changes apparently associated with TLS1.3 handling some of the APIs
      previously used were either nonfunctional or inappropriate.  Strings
      like TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM__AEAD:256
      and TLS1.2:ECDHE_SECP256R1__RSA_SHA256__AES_128_CBC__SHA256:128 replace
      the previous TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256 .
      This affects log line X= elements, the $tls_{in,out}_cipher variables,
      and the use of specific cipher names in the encrypted= ACL condition.

JH/17 OpenSSL: the default openssl_options now disables ssl_v3.

JH/18 GnuTLS: fix $tls_out_ocsp under hosts_request_ocsp. Previously the
      verification result was not updated unless hosts_require_ocsp applied.

JH/19 Bug 2398: fix listing of a named-queue.  Previously, even with the option
      queue_list_requires_admin set to false, non-admin users were denied the
      facility.

JH/20 Bug 2389: fix server advertising of usable certificates, under GnuTLS in
      directory-of-certs mode.  Previously they were advertised despite the
      documentation.

JH/21 The smtp transport option "hosts_noproxy_tls" is now unset by default.
      A single TCP connection by a client will now hold a TLS connection open
      for multiple message deliveries, by default.  Previoud the default was to
      not do so.

JH/22 The smtp transport option "hosts_try_dane" now enables all hosts by
      default.  If built with the facility, DANE will be used.  The facility
      SUPPORT_DANE is now enabled in the prototype build Makefile "EDITME".

JH/23 The build default is now for TLS to be included; the SUPPORT_TLS define
      is replaced with DISABLE_TLS.  Either USE_GNUTLS or (the new) USE_OPENSSL
      must be defined and you must still, unless you define DISABLE_TLS, manage
      the the include-dir and library-file requirements that go with that
      choice.  Non-TLS builds are still supported.

JH/24 Fix duplicated logging of peer name/address, on a transport connection-
      reject under TFO.

JH/25 The smtp transport option "hosts_try_fastopen" now enables all hosts by
      default.  If the platform supports and has the facility enabled, it will
      be requested on all coneections.

JH/26 The PIPE_CONNECT facility is promoted from experimental status and is now
      controlled by the build-time option SUPPORT_PIPE_CONNECT.

PP/01 Unbreak heimdal_gssapi, broken in 4.92.

JH/27 Bug 2404: Use the main-section configuration option "dsn_from" for
      success-DSN messages.  Previously the From: header was always the default
      one for these; the option was ignored.

JH/28 Fix the timeout on smtp response to apply to the whole response.
      Previously it was reset for every read, so a teergrubing peer sending
      single bytes within the time limit could extend the connection for a
      long time.  Credit to Qualsys Security Advisory Team for the discovery.

JH/29 Fix DSN Final-Recipient: field.  Previously it was the post-routing
      delivery address, which leaked information of the results of local
      forwarding.  Change to the original envelope recipient address, per
      standards.

JH/30 Bug 2411: Fix DSN generation when RFC 3461 failure notification is
      requested.  Previously not bounce was generated and a log entry of
      error ignored was made.

JH/31 Avoid re-expansion in ${sort } expansion. (CVE-2019-13917)

JH/32 Introduce a general tainting mechanism for values read from the input
      channel, and values derived from them.  Refuse to expand any tainted
      values, to catch one form of exploit.

JH/33 Bug 2413: Fix dkim_strict option.  Previously the expansion result
      was unused and the unexpanded text used for the test.  Found and
      fixed by Ruben Jenster.

JH/34 Fix crash after TLS shutdown.  When the TCP/SMTP channel was left open,
      an attempt to use a TLS library read routine dereffed a nul pointer,
      causing a segfault.

JH/35 Bug 2409: filter out-of-spec chars from callout response before using
      them in our smtp response.

JH/36 Have the general router option retry_use_local_part default to true when
      any of the restrictive preconditions are set (to anything).  Previously it
      was only for check_local user.  The change removes one item of manual
      configuration which is required for proper retries when a remote router
      handles a subset of addresses for a domain.

JH/37 Appendfile: when evaluating quota use (non-quota_size_regex) take the file
      link count into consideration.

HS/04 Fix handling of very log lines in -H files. If a -<key> <value> line
      caused the extension of big_buffer, the following lines were ignored.

JH/38 Bug 1395: Teach the DNS negative-cache about TTL value from the SOA in
      accordance with RFC 2308.  Previously there was no expiry, so a longlived
      receive process (eg. due to ACL delays) versus a short SOA value could
      surprise.

HS/05 Handle trailing backslash gracefully. (CVE-2019-15846)

JH/39 Promote DMARC support to mainline.

JH/40 Bug 2452: Add a References: header to DSNs.

JH/41 With GnuTLS 3.6.0 (and later) do not attempt to manage Diffie-Hellman
      parameters.  The relevant library call is documented as "Deprecated: This
      function is unnecessary and discouraged on GnuTLS 3.6.0 or later. Since
      3.6.0, DH parameters are negotiated following RFC7919."

HS/06 Change the default of dnssec_request_domains to "*"

JH/42 Bug 2545: Fix CHUNKING for all RCPT commands rejected.  Previously we
      carried on and emitted a BDAT command, even when PIPELINING was not
      active.

JH/43 Bug 2465: Fix taint-handling in dsearch lookup.  Previously a nontainted
      buffer was used for the filename, resulting in a trap when tainted
      arguments (eg. $domain) were used.

JH/44 With OpenSSL 1.1.1 (onwards) disable renegotiation for TLS1.2 and below;
      recommended to avoid a possible server-load attack.  The feature can be
      re-enabled via the openssl_options main cofiguration option.

JH/45 local_scan API: documented the current smtp_printf() call. This changed
      for version 4.90 - adding a "more data" boolean to the arguments.
      Bumped the ABI version number also, this having been missed previously;
      release versions 4.90 to 4.92.3 inclusive were effectively broken in
      respect of usage of smtp_printf() by either local_scan code or libraries
      accessed via the ${dlfunc } expansion item.  Both will need coding
      adjustment for any calls to smtp_printf() to match the new function
      signature; a FALSE value for the new argument is always safe.

JH/46 FreeBSD: fix use of the sendfile() syscall.  The shim was not updating
      the file-offset (which the Linux syscall does, and exim expects); this
      resulted in an indefinite loop.

JH/47 ARC: fix crash in signing, triggered when a configuration error failed
      to do ARC verification.  The Authentication-Results: header line added
      by the configuration then had no ARC item.

mail: align variable assignments

pkglint -Wall -F --only aligned -r

No manual corrections.

exim: change local makefile options name for SPF

The local makefile option need to be adjusted because SPF is
no longer an experimental feature in exim.

since 4.87 redis lookup is no longer experimental

Add two new options for exim:
	- exim-lookup-redis: allow quering redis from within the exim
	                     config, needs hiredis
	- opendmarc: enables DMARC support
Both are disabled by default.

* .include "../../devel/readline/buildlink3.mk" with USE_GNU_READLINE=yes
  are replaced with .include "../../devel/readline/buildlink3.mk", and
  USE_GNU_READLINE are removed,

* .include "../../devel/readline/buildlink3.mk" without USE_GNU_READLINE
  are replaced with .include "../../mk/readline.buildlink3.mk".

Add inet6 to default suggested options. It's 2012.

Added optional support for SPF

Changes 4.72:
* installed exipick 20100104.1, adding $max_received_linelength, $data_path,
  and $header_path variables; fixed documentation bugs and typos
* installed exipick 20100222.0, added --input-dir and --finput to allow
   exipick to access non-standard spools, including the "frozen" queue (Finput)
* Support mysql stored procedures.
* Spacing fix (syntax error) on Makefile directives for NetBSD
* Documentation fix for max_rcpts.
* Fix for unknown responses from Dovecot authenticator.
* Added umask to procmail example.
* installed exipick 20100323.0, fixing doc bug
* CVE-2010-2023 - prevent hardlink attack on sticky mail directory.
* Upgrade PolarSSL files to upstream version 0.12.1.
* Improve log output when DKIM signing operation fails.
* Treat the transport option dkim_domain as a colon separated list, not as
  a single string, and sign the message with each element, omitting multiple
  occurences of the same signer.
* Null terminate DKIM strings, Null initialise DKIM variable
* dnsdb DNS TXT record bug fix (DKIM-related)
* CVE-2010-2024 - work round race condition on MBX locking.

Fix building with db5; revision bump for db4 update

Added 'readline' option, and MAKE_JOBS_SAFE=no

Update to exim-4.67nb1:
- When -inet6, explicitly set HAVE_IPV6=NO to avoid use of any inet6 APIs
Note: For entertainment purposes build a NetBSD distribution with
'MKINET=no' and see what breaks in pkgsrc

Fix modular Xorg support. Untested though, as it doesn't fully build
on NetBSD/current.

add exim-auth-dovecot and EXIM_MAX_INCLUDE_SIZE. both disabled by default

Fix spelling of saslauthd option in PKG_SUGGESTED_OPTIONS.
From Peter Avalos.

Update mail/exim to 4.63nb1
- Add options exim-appendfile-maildir exim-appendfile-mailstore
  exim-appendfile-mbx exim-lookup-cdb exim-tcp-wrappers exim-tls
  All but exim-lookup-cdb default to off, to preserve previous
  defaults.

The databases/openldap package has been split in -client and -server component
packages.  Convert LDAP-based applications to depend on openldap-client, and
bump PKGREVISION for those that depend on it by default.

Update path from cyrus-sasl2 to cyrus-sasl.

Add exim-lookup-pgsql and exim-lookup-sqlite - as provided by Geert
Hendrickx.

Added RCS Id to patch-aa. Removed trailing white-space from options.mk.

Update exim to 4.54nb1 - Enable IPv6 based on inet6 settings

update exim to exim-4.52nb5 - if exim-build-eximon: also work with xorg and fix PLIST

Update exim to exim-4.52nb4:
	Fix PLIST for eximon option - from Sven Hartge

Update exim to exim-4.52nb3:
- Add rmail, rsmtp, & runq as exim mailer.conf aliases (from Sergey Svishchev)
- Add lookup options for openldap, mysql, eximon and dnsdb (from Sven Hartge
  in PR pkg/27242)
- Change 'exim' specific options to be prefixed with exim- (suggsted by
  Dieter Baron)

Update exim to 4.52nb2
- Fix NetBSD statvfs check for NetBSD 2.1
- Move options into options.mk,
- breakout lookup_dsearch (default on)
- add saslauthd (Requested by Peter Avalos)